Type-writing machine.



N0 830,480. 1 PATENTED SEPT. 4, 1906.

0. c; KAVLE.

TYPE WRITING MACHINE.

APPLICATION FILED JUNE 7. 1905.

z SHEETS-SHEET 1.

zwzwmraf 2 0. 0. KAVLE. 4 TYPE WRITING MACHINE. APPLICATION FILED JUNE7, 1905.

PATENTED SEPT; 4, 1966,

2 SHEETS-SHEET 2.

1222673902? wzwwgv M. 7%zzzziw UNITED sTAr s PATENT oEEroE.

osoAR o. KAVLE; or 'svmcusiaNEW YORK, ASSIGNOR TO HARVEY A. MOYERAND.EMMIT e. LATTA, OF SYRACUSE, NEW YORK-,-

' TYPE-WRITING MACHINE.

To. all whom it may concern.-

Syracuse, in the county of Onondaga,.in the State of New York, haveinvented new and useful Improvements in Type-Writing Machines, of whichthe following, taken in connectionwith the accompanying drawings, is afull, clear, and exact description.

This invention relates to certain improvements in type-writing machinesof the class commonly known as front-strike? or visible-Writingmachines, and refers more par- I ticularly to the paper-holding andalining mechanism as associated with a verticallyshiftable platen.

My first object is to provide suitable lineindicator plates which areadjustable vertically with the platen and not only maintain a fixedrelation to the printing-line in printing with lower. or, u per casetype, but also serve as a means or pressing the paper lightly againstthe platen at the printingline and also to facilitate the lining up'ofruled or blank forms, so that the printed matter may be accuratelyalined.

' A further object is to utilize these indicator-plates to determine theexact position of any particular letter or space with reference to theprinting-point and to press the paper 3 against the platen at theprinting-line close to and at opposite sides of the printing-point.Another object is to rovide individual paper-holders which may eadjusted lengthwise of the platen and to mount these holders in suchmanner that their up er ends may be thrown forwardlyindividual y orsimultaneously and held in this position to allow corrections orerasures to be made on each copy I of manifold-work Without liability ofdisplacing such copies in the machines. In other words, my purpose isto-mount the pa erholders upon a rock-shaft below the printingline andat the front of the platen and to arrange these holdersso that they maybe thrown forwardly and downwardly, leaving the printed part of thesheet entirely-free to be turned or folded forwardly to facilitate the.

work of corrections or. erasures.

Other more specific objects and uses will be brought out in thefollowing description.

In the drawings, Figures 1 and 2 are respectively front and endelevations of a platen and its carriage and the various parts of myinvention associated therewith, and includ- Specification of LettersPatent. Application filed June7,1905. Serial No. zealso exte ends of theplaten spindle or trunnion b.

lPatented Sept. 4, race.

in'g particularly the paper-holding devices and indicator-plate. Fig. 3is an end view of theplaten, showing one of the paper-holding devicesand its supportingqod. Fig. 4 isa sectional viewtaken on line i 4, Fig.1, showing the same parts'as seen in Fig. 3.

Fig. 5.

is a front face view of a modified form of paperholder and index-plate.Fig. 6 is a sectional view takenfon line 6 6, Figi 5, showingin additionthe platen. v

A represents a vertically-shiftable carriagesupporting frame of afrontstrike type-.writing machine, and although my present invention maybe used in connection with any kind of a supporting frame which isvertically shiftable I prefer to use an oscillatory frame, as shown inFig. 2, such frame being provided with.rearwardly-extending arms a,which are pivoted at a at the rear of a suitable platen B upon anyavailable part of the main supporting-frame C, only a portion of whichis shown in Fig. 2. This oscillatory frame A is provided with a track Asome distance in front of its pivota/ andparallel with the axis of theplaten B said track having a suitable ball-race 1 running along its topedge for receiving suitable ball-bearings 2 and is also provided withone or more ball races or pockets 3 opening from its front face near thebottom of-the track for receiving and retaining ball bearings 4, whichlatter protrude slightly beyond the open side of the ball races orpockets 3..

A platen-supporting carriage D is supported ugon the ball-bearingsZ and4 and is provide with a lengthwise hood 5, overhanging the ball-race 1and having a lengthwise rooveion its inner face for receiving andorminga bearing for the ball 2, said hood protecting the bearings from theaccumulate tion of dust or other foreign substance which might interferewith the free action of the carriage along the track A. This carriage D,s downwardl across the open sides of thi' be arings 3 an is thereforelocated in front of the track A and bears against the front faces of theballs 4, said carriage being provided with forwardly-extending arms 6,one at each end ofv the platen B, and each of these arms 6 is providedwith a bearing 7, open at the top and receiving the adjacent It nowappears that the platen B is supported in a carriage in front of thebearings 2 andt and that said carriage is practically susdisturbing theshifting support A.

Any suitable shifting means, not necessary to herein illustrate ordescribe, may be applied to the oscillatory frame or support A to shiftthe same vertically, 'or rather to rock the same upon its pivot a, forthe purpose of shifting the carriage D and its platen B vertically tochange the position of the latter for printing with upper and lower casetype, it

eing understood that in front-strike machines it is customary to employtwo type on each type-bar and that under such circumstances it isnecessary to shift either the platen or the type-bars to chan e from onecase type to the other, and, w 'le I have shown and described thespecific form of shiftin support for the platen, yet I reserve the rig't to shift the type-bars, if found to be more practical or expeditious.

- When the shiftable platen-support-is used in the manner described, Iprovide the oscillatory frame A with a central arm 8, extendingdownwardly and forwardly under the plate-B and terminating at its frontend in an elongated yoke 9, extending equal distances at opposite sidesof the central arm 8, each end ,of the yoke being provided with a pairof ears 10, in which are mountedseparate pivotal pins 11. Pivotallymounted upon each pivotal pin is a similar indicatorplate 12, havingtheir lower ends seated between their respective pairs of ears 10 andtheir upper edges disposed in the. samehorizontal plane closeto thefront face of the platen and in a line parallel with the printing lineand a distance below said printing-line substantially equal to half thevertical height of the type, so that the top edges of both index-platesare exactly coincident with the bases of the type. The inner or adjacentedges of these indicator-plates are disposed in parallel vertical linesand are spaced apart a distance corresponding to a certain number, inthis instance six type-spaces, and the upper end of each index-plate 12is provided with graduations13. Each of the indicatorplates 12 has itslower pivoted end bifurcated for receiving acoil-spring 14,'which ismounted upon the pivot 11 and has one end engaged with the yoke 9 andits other end hearing upon the front face of the plate 1.2, therebypressing the upper end'of said plate lightly toward the platen andagainst the paper, which may be, wrapped thereon, the upper edges ofsaid plates being deflected rearwardly so as to bear upon the'paper inthe same straight line. parallel with and close to the printing-line.

The front endsof the arms 6 of the carriage D are extended forwardly anddownwardly and are provided with suitable apertures in which arejournaled the opposite ends of a rock-shaft 15, carrying a pair oflongitudinally-adjustable paper-holders 16, presently described.

Rigidly secured to one end, preferably the left-hand end of thisrock-shaft, is a for wardly-extending finger piece or lever 17, whichforms an abutment to prevent endwise movement to the right, and at theother end of the rock-shaft is rigidly secured a collar 19, whichprevents endwise movement of the shaft in the opposite direction. Thisrock-shaft is preferably angular in cross-section and is provided with aflat front face which is graduated into suitable letterspacescorresponding withthe graduations on the plates 12 and cooperate withthe graduations'on said plates to determine the position of the printedmatter with reference to the printing-point.

Each of the paper-holders 16 is identical in construction, and I willtherefore describe only one of them, which consists, essentially, of astrip or band of spring metal having its intermediate ortion forming aloop 19, fitted upon the roc r-shaft 1.5 and having one end extendedupwardly across and against the flat face of the rockshaft andterminating in a pair of ears 20, in which is mounted a piv otal pin2]., while the other end is brought forwardly from the rear over the topface of the bar between and in front of the ears 20 and isthen'deflected upwardly for forming a spring-arm 22, which bears againstthe front face of a roller-sup orting frame 23. The lower end of thisroiier-supporting frame 23 is formed with an eye pivoted upon thepivotal pin 21, and the opposite longitudinal edges of its upper end arebent forwardly for formingears 24, in which is mounted a pivotal pin 25,carrying a roller 26, which latter :bears upon the periphery of theplaten, or

rather against the surface of the paper thereon.

As best seen in Fig. 1, each of the roJh-rsupporting frames 23 isprovided with a oon tral opening 27, having its lower end terminating ina line substantially coincident with or slightly above the upper end ofthe springtongue 22. It will be observed that this spring-tongue 22normal'ly bears against the front face of the roller-s11pporting frameiii, thereby pressing said frmue rearwardly and holding the roller 26 inengagement with the paper on the platen B, but owing to the fact thatthe frame 16 is pivoted at its lower end below the upper extremity ofthe spring-arm 22 the upper end of said frame 16 may be rocked forwardlyagainst the action of the nis ing alining devices at 'each end and atthecenter of'the platen by means ofwhich any was srin 22 until the u' erend of the latter 9 s PP may be shifted by hand lengthwise of the platenand rock-shaft to any desired position, thereby carrying theroller-supporting frame 23 with it.

roller 26 is located above the printing-line, and the upper end of theframe 23 is extended above the roller and is bent forwardly a slightdistance, forming a finger-engaging portion '28, whereby theupper end ofthe frame may be rocked to and from its operative position, the spring22 servin t0 retain.

it in either position, and when t is rollersupporting frame is rocked toits inoperative position, as shown by dotted lines inFig. 3,

it is clearly evident that the paper or mani-' 'fold copies in themachine may be readily drawn in either direction to bring them intovertical alinement with the scale on the bar 15, or rather to bring thebases of the printed lines of the pa er into registration with the upperedges '0 the plates 12, or such caper or manifold copies may be shiftedlengthwise of the platen to bring any particular letter intoregistration with one of the graduations 13. In order to furtherfacilitate the lining-up of the paper withireference, to the rintingline or point, I provide each pa eriolder with an alining-plate 30, whicis made of thin sheet metal having its lower end provided with suitableears, which are pivoted upon the ends of-the pivotal pin 21, the

upperedge of said plate'30 being disposed in a straight horizontal linecoincident with the up er edges. of the plates 12, thereby furruled paer or printed blank forms may be accurate y adjusted to theprinting-line. The carriage-sup orting frame A, and therefore theindex-p ates 12, are fixed from endwise movement, and as the upper edgesof the plates 12 are graduated to correspond'with the scale-bar 15 theposition of any im ression made by the type which strikes mi( wayvspective frames 23, andwhilethey are perbetWeenthe adjacent edges ofthe-plates 12 may be readily determined by comparison with thegraduation on the scale-bar15 mid way between the adjacent edges (ifsaid plates The plates 30 lie just back of their remittcdto presslightly against-the paper they are prevented from endwise for-Warddisplacement by the frames 23, and their lower ends It will also beobserved that the This roller-supporting frame 23" is pivoted below the'printing-linef'but its,

are provided with forward spring extensions 32, which bear upon the sring-arms 22 in front of the pivots 21, sai spring-arms 32 serving toyieldingly force the lates '30 toward the platen and against t e paperthereon. In order tohold the rock-shaft 15'and its apereholding devices16 in their extreme ad j sted positions, I provide the hub of the%nger-pi ece- 17 with suitable shoulders or notches 34 and 35,-whichareengaged by' the free end of a s ringdetent 36, said .detent havingits'ot r end secured to the under side of the arm 6 bysuit ablefastening means, as a screw 37. The 0 posite faces of the notches 34 and35 and a so the free end "of the spring-pawl 36 are beveled in thedirection of rotation of the rock-shaft 15 to permit said rock-shaft tobe readily turned by means of the hand-piece,

17, the free end of the 5 ring engaging in the no ch 34 to hold the rocshaft and its paper-- ment of the parts just described enablwme to throwboth of the paper-holding devices into and out of operative positionby-the backward or forward movement of the hand-.

piece 17', or, if desired, the rock-shaft may be eft in its normalposition and either of the paper-holding devices may be thrownforwardlyor backwardly by hand independ ently of the other. I 7

It will be observed that the outer ends of the central lineindicatorrplates 12 are curved forward slightly, so that as either ofthe paper-holding devices approach the printin'gr v pomtthey strikethese curved-parts and cause them to spring away from the platen,thereby allowing the paper-holders to run under or back of theindicators until the part 22 strikes the lower part ofthe left-handplate 12, whereupon the further movement of the carriage causes thepaperholding finger to slide on the bar 15, and thus prevents the fingerfrom-passing in front of the printingtype point where it might injurethe-face of the a somewhat simpler and less expensive co'nstruction andcomprises a papersholding finger 16 and a single central indlcator plate12, the paper holding finger 16f consisting of a spring-frame 23, havingits lower end formedwith an, eye 19', which is closely fitted upon theangular scale-bar 15 and has its cen tral portion formed wi thadepending springtongue 22', which bears upqnthe front flat face of therock-shaft or scale-bar 15, therebyv holding the paper-holding device 16yieldingly in its operative position and at the same time permittingsaid frameto be drawn forwardly by hand, causing the free end of thespring-arm 22 to ride or slide transthe platen.

versely across the flat face of the bar 15 until it rides against thecurved lower face of said bar, but when returned to its normal operativeposition it is frictionally held by contact of the spring-arm 22 withthe fiat face of the bar 15. Otherwise the construction is very similarto that seen in Fig. 3.

The essential difference of the indicator- .plate 12 over that seen inFig. 1 is that it is formed in a single piece of thin metal having itslower end hinged upon the front end of an arm 8 similar to the arm 8,while its upper end is bifuracted and is provided with oppositegraduated parts 13 extending to the graduated parts 13 of the plates 12,the intervening space permitting the operation of the type to andfromthe platen and also exposing the working part of the inking-ribbon,said plate being held in its operative position by a spring 14' similarto one of the springs 14, Fig. 1.

One of the important objects in mounting the index-plates 13 and 13 uponthe forweirdly-extending arm of the vertical-shifting carriage-enporting frame, as A, is that these indicatorates are always shiftedvertically with the p aten, as distinguished from the ordinary method ofsecuring the index-finger rigidly to the frame of the machine or to apart rigidly connected thereto, in which case the index-finger does not,of course, shift with This vertical shifting of the indicator-plates isimportant from the fact that when printing near the end of the sheetthere is no liability of the ends of the paper engaging upon and beingdisplaced by engagement with the indicator when the platen is returnedafter having been shifted.

When it is desired to make an erasure on a number of sheets, as in manifolding, the lever 17 is depressed until the s ring 36 engages thenotch 35, during which 0 eration both paper-holders 16 are thrown'orward'ly and are held in this position, thereby enabling the operatorto turn'back the sheets and make the proper erasures on each sheetwithout liability of displacing the carbon-sheetsor papers, after whichthe lever and paperholders are returned to their normal positions andthe proper correction made where the erasures occurred,'and when anerasure is to be made near the paper-holder on a single sheet it is.only necessary to draw that particular holder forward by hand in themanner described and then be returned after the erasure is made.

An important advantage obtained .by pivoting the paper-holders below theprintingline and adapting them to be turned to the osition shown bydotted. lines in Fig. 3 and held in that position is that they are thenso far removed from the platen that the holders do not cause theinterposed carbon-sheets to smut the-work when a number ofmanifoldsheets are turned forwardly over the holders for the purpose ofmaking erasures on the sheet or sheets next to the platen.

What I claim is-- 1. In a front-strike type-writing machine, thecombination of a platen-carriage and platen thereon, an oscillatorysupport having a track for the carriage, an arm rigid on the support andextending forwardly under the platen, and an index finger or platemounted on the front end of the arm.

2. In a front-strike type-writing machine,

a laterally-movable carriage, a platen there- 'on, an oscillatingshiftframe supporting the carriage, an arm projecting forwardly from theshift-frame, and an index finger or plate having its lower partpivotally connected to said arm, and its upper part yieldingly heldagainst the platen, and acting to cause the index-finger to retain afixed relation with the printing-point regardless of the move ments ofthe platen. g

3. In a front-strike type-writing machine, an oscillatory carriagesupporting frame fixed from endwise movement and having a centralforwardly extending arm, a carriage mounted on the frame, a platensupported on the carriage above said arm and a spring-pressed indexplate or finger mounted on the arm with its upper edge pressed towardthe platen and parallel with the printing-line.

4. In a front-strike type-writing machine, an oscillatorycarriage-supporting frame having a central forwardly-extending arm, acarriage mounted on the frame, a platen on the carriage and aspring-pressed index plate or finger pivoted to the front end of the armbelow the printing-line vilth its upper edge pressed toward the platenand disposed below and parallel with the printing-line 5. In afront-strike type-writing machine, the combination with a platen, acarriage the platen, and an oscillating shift-frame for the carriage, ofa rod. or bar extending parallel with the platen and supported by thecarriage below the printing-line, a pair of upright paper-holdersslidably mounted on the bar and normally moving therewith, and an indexfinger or plate located between said paper-holders outside of said bar,and connected to the oscillating shift-frame so as to vibrate therewithwithout lateral movement.

6. In a front-strike type-writing machine, a platen movable latera incombination with a pair of line-indicators operatively connected to movewith the platen in both directions, and a central lineindicatoroperativelyconnected to .move transversely only, the" upper edges of allsaid indicators being arranged in a straight line parallel with, andadjacent to the printingline.

Z. In a front-striketype-writing machine, the combination 'with aplaten, and its carriage, of an upright paper-holder in front of for lyand transversely,

' the platen and-fulcrumed below the printing line, a'bar forming asupport for the paper holder and extending parallel with the platen, anda spring acting to frictionally secure the paper-holder againstaccidental movement along the bar, and also acting to press thepaper-holder against theplaten, or hold it away from the same asrequired.

8. In a front-striketype-writing machine, the combination with a platenmovable axially and transversely of its axis, and a car-- riage for theplaten, of a rock-shaft mounted on the carriage, and a plurality ofpaper holders 'pivotally connected to the. rock shaft, each holderhaving a spring acting to retain it in either of two positions, thepaperholders being 'slidable along the rock-shaft and having theirpivoted ends connected thereto in a way to cause them to swing to orfrom the platen with the rocking of the shaft, or to permitthepaper-holders to be turned on their pivots to either of thespring-holding positions independent of the movement of the shaft.

9. In a front-strike type-writing-machine, the combination with-aplaten, a carriage for the platen, and a rock-shaft arranged parallelwith the platen, of two paper-holders laterally adjustable on therock-shaft and pivotally connected thereto, a spring acting to hold eachof the paperffingers in either of two positions, and means for rockingthe shaft and holding it in'either of two positions.

10. In a front-strike type-writing machine, a platen, and a carriagesupporting the platen without obstructing its frontand upper side, incombination with an upright paper-holder fulcrumed below the printingline, a spring acting normally to press the upper part of the holderagainst the platen, and means acting to holdthe paper-holder in aforward position when desired. a

11 In a front-strike type-writing machine, the combination with aplatenand its carriage, of a curved paper-holder iulcrumed at its lowerend below the printing-line, and means for holding the upper part of thepaper-holder upright against the platen above the print ng-line, or in aprone position to permit the paper to be turned forward clear from theplaten above the printing-line.

12. In a front-strike type-writing machine, the combination with a latenand its carriage, of a pa er-holder in crumed at its lower end. below te printing-lineand extending upwardly and rearwardly over theprintingline, said holder having a pressure-roller fulcrumed betweenitsends, and a spring normally holding the paper-holder against the platen,or in a downward position when erasures are to be made.

13. In a front-strike type-writing machine,

a platen, in combination with a rock-bar in front of the platen andbelow the printingpoint, pape;=-- =;elders clamped upon and movable withthe bar to engage the paper above the'printing-line, means for rockingthe bar, and additional means for holding it in either of its adjustedpositions.

14. In a front-strike type-writing machine, a platen and its suporting-carriage, in combination with a roc -shaft mounted upon thecarriage parallel with, but below the printing-line, a line-indicatorfixedfrom endwise movement, means to shift the carnage and indicatortransversely of the axis of the platen, paper-holders clamped to the barat op osite sides of the line-indicator and slidab e lengthwise of thebar, line-indicators each having operative connection with one of thepaper-holders to slide therewith and lengthwise of the paper.

15. In a front-strike type-writing machine, thecombination with aplaten, and its carriage, of a rod or bar arranged below the printin-line and arallel therewith, and a paper-ringer latera ly adjustablealong said bar having two separate parts bearing against the platenabove the rod, one of said parts being movable away from the platen, andmeans for holding the movable part in either of two positions.

I It; In a front-strike type-writing machine, the combination with aplaten, and its car riage, of a rod or bar arranged below theprinting-line and arallel therewith", and a paper-finger latera lyadjustable along said bar having two separate parts both above said rodand terminating one above and the other below the printing-line, withmeans for holding both parts yieldingly against the platen.

17. In a front-strike typewriting machine, the combination with aplaten,of a rod or bar arranged below the printing-line, a lineindicator, and apaperger supported by the rod both normally 'in contact with the platen,and means ermitting the paper-fin ger to swing away rom the latenirrespective of the indicator, said r0 swinging both the indicator andfinger away therefrom as desired. 9

18. In a'front-strike type-writing machine, the combination with aplaten, of a rod or bar arranged below the printing-line, alineindicator and a pa er-finger arranged on the rod, the indicatorvbeing in rear of the finger, and the finger having an opening throughwhich the indicator can be seen.

19. In a front-strike type-wri ting machine, the combination with aplaten, of a rod or bar arranged below the rinting-line, a paper-fin er,and a line-in icator arranged on the r0 both normally in contact' with,the

laten, and the finger being made to swing orward independently of theindicator and the rod bein connected to swing both the finger andindicatonforward as desired.

20. In a front-strike t e-writing machine, the combmation-with aEhiit-carriage, and a and additional laten, of a supporting-frame havinga track ported by the central extension in front of 10 or the carriageline-indicators, one at each the platen independently of the carriage.side of the printing-point supported by the In witness whereof I havehereunto set my shiit-frgineiwrf hereliy it shifts with the platen handthis 1st day of June,-1905. 5 an is 6 rom atera movement.

21. In a front-strike type-writing machine, OSCAR KAVLE' the combinationwith a shift-carriage and Witnesses:- a platen, of a carriage-shiftframe having a H. E. CHASE, central extension, and a line-indicator sup-E. G. LATTA.

